Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Szmaragdowe Lake

Sortuj według:

Ogranicz wyniki do:

Total alkaline phosphatase activity in water of Szmaragdowe lake in the city of Szczecin in Poland

Daniszewski P.

International Letters of Chemistry, Physics and Astronomy

2013

Vol. 8, iss. 1

87--93

The progress of civilisations causes changes in the water catchment areas lakes. aquatic waters are order - phosphorus and nitrogen compounds. Level of activity alkaline phosphatase (APA) has an important impact on the chemical and biological processes taking place in the aquatic environment. APA belongs to a group of indicators, who tells us about the extent limitations to development of biomass in the tank water. Water of Szmaragdowe lake were the subjects of 2008-2012 (July – September). Total alkaline phosphatase activity was determined seven times a year in these environments. A study of seasonal fluctuations showed that a maximum total alkaline phosphatase activity, both in the water and in the bottom sediment, occurred in spring (May) and summer (July, August). The results presented in in tables 1 to 5 demonstrate that total alkaline phosphatase activity in the waters of Szmaragdowe lake over the five-year period of study oscillated between 242,3 to 642,1 nmol PO4•dm–3•h–1. The oscillation range in both zones of the analyzed water body was similar. In the littoral it ranged from 312,3 to 642,1 nmol PO4•dm–3•h–1, and in sublittoral from 242,3 to 536,9 nmol PO4•dm–3•h–1.

Total alkaline phosphatase activity in bottom sediments of Szmaragdowe lake in the city of Szczecin (North-West Poland)

Daniszewski P.

International Letters of Chemistry, Physics and Astronomy

2013

Vol. 8, iss. 2

182-187

Level of activity alkaline phosphatase (APA) has an important impact on the chemical and biological processes taking place in the aquatic environment. APA belongs to a group of indicators, who tells us about the extent limitations to development of biomass in the tank water. Water of Szmaragdowe lake were the subjects of 2008-2012 (July - September). Total alkaline phosphatase activity was determined seven times a year in these environments. A study of seasonal fluctuations showed that a maximum total alkaline phosphatase activity, both in the bottom sediment, occurred in spring (May) and summer (July, August). Total alkaline phosphatase activity in the bottom sediment of Szmaragdowe lake over the five-year period of study oscillated between 764.1 to 7938.7 nmol PO4źdm-3źh -1. In the littoral it ranged from 3107.4 to 7938.7 nmol PO4źdm-3źh -1, and in sublittoral from 764.1 to 3429.5 nmol PO4źdm-3źh -1.